David l



(No Model.)

. D. L. DURAND.

BUGKLEL Patented May 5,1891.

' UNITED STATES PATENT OFFICE.

DAVID Ii. DURAND, OF BIRMINGHAM, CONNECTICUT, ASSIGNOR TO THE OSBORNE & CHEESMAN COMPANY, OF SAME PLACE.

BUCKLE.

SPECIFICATION forming" part of Letters Patent No. 451,758, dated May 5, 1891.

Application filed January 14, 1891. Serial No. 377,726. (No model.)

To all whom it may concern:

Be it known that I, DAVID L. DURAND, a citizen of the United States, residing at Birmingham, in the county of New Haven and State of Connecticut, have invented new and useful Improvements in Suspender-Buckles, of which the following is a specification.

This invention relates to that type of suspender-buckles which comprise a flattened tube having a rectilinear slot, in which is pivoted a clamp-lever for engaging a suspenderweb, and thereby hold the buckle in a fixed position thereupon.

The object of my invention is to improve this type of buckles; and to this end it consists in a Suspender-buckle composed of a fiattened tube constructed for the guiding movement of the Suspender-web and provided with parallel front and rear walls, the former having a horizontal slot and the latter a center seam formed by hook-flanges interlocked and pressed to leave the outside fiat and flush, said rear wall also havingtransverse indentations extending across the hook-flange seam and the serrated lever pivoted in the slot to press the suspender-web against the transverseindentations and the hook-flange seam, which thereby act as a resistance to the suspender-web.

The invention is illustrated by the accompanying drawings, in which- Figure 1 is a perspective view, looking at the front portion of a suspender-buckle constructed in accordance with my invention. Fig. 2 is a similar view, looking at the rear portion thereof. Fig. 3 is a horizontal sectional view of the buckle-frame; and Fig. 4: is a detail perspectiveview of the metallic strip, showing the manner of constructing its extremities. for interlocked engagement with each other.

In order to enable those skilled in the art to make and use my invention, I will now describe the same in detail, referring to the drawings, wherein The numeral 1 indicates the sheet-metal box-frame of the buckle, which is in the form of a flattened tube to receive a suspender-web, and is provided with a horizontal slot 2, with which is pivotally engaged a swinging clamplever 3, having a serrated or other suitablyconstructed jaw 4 to engage the suspenderweb, and thereby secure the buckle or box frame in position thereon. The free end of the clamp-lever is suitably constructed todetachably engage the ordinary cast 01f, by which the suspender-ends are detachably connected with the clamp-lever. In the example shown the free end of the clamp-lever is bent into a hook 5, and is formed with a spring tongue-piece 6 for retaining the cast-off in the hook in the usual manner.

The buckle or box frame is formed on a rectilinear strip of sheet metal having its extremities bent into hook-shaped flanges 7, as shown in Fig. 4, which are engaged one with the other and then subjected to pressure for the purpose of flattening the joint and placing the hook-flanges in parallelism with the rear wall of the buckle or box frame. The sheet-metal strip, with its hook-flanges, as described, is bent into the form of a flattened tube, the flanges are interlocked, and pressure is then applied, so that the hooked extremities are placed in direct interlocked engagement one with the other for the purpose of rigidly and permanently connecting the ends of the metallic strip to produce a buckle or box frame of the character specified.

To prevent any movement of one extremity of the metal strip upon the other extremity in a direction lengthwise of the seam, I form the rear wall of the buckle or box frame with a horizontal corrugation 8, which extends across the seam, and is produced by merely indenting the metal, and thereby causing the hookflanges 7 to be locked in engagement with each other by a bead-like connection, which extends transverse to the longitudinal line of the seam. By this means it is impossible for one extremity of the sheet-metal strip to move upon the other extremity, and this is accomplished by the simple construction specified without the employment of tubular or solid rivets for uniting the extremities of the sheetmetal strip. I do not confine myself 'to any particular number of corrugations.

By the construction of a buckle or box frame IOO where the ends of the buckle-frame are u uited by tubular or solid rivets.

In the compression of the hook-flanges for placing them in parallelism with the rear wall of the buckle or box framelemploy sufficient pressure to effectually flatten the joint, and thereby throw the seam within the suspenderbuckle frame, so that the hook-flange seam and the transverse indentations act as a resistance to the suspender-web when the latter is pressed upon by the serrated lever. By this means the suspender-web is firmly secured in its adjusted position Within the buckle, while there are no external projecting parts along the seam to tear or abrade the garments,as is the case where rivets are employed.

Having thus described my invention, what I claim is-- The herein-described Suspender-buckle, consisting of a flattened tube constructed for the guiding movement of the suspender-web and provided with parallel front and rear walls, the former having a horizontal slot and the latter a center seam formed by hookflanges interlocked and pressed inward to leave the outside fiat and flush, said rear wall also having transverse parallel upper and lower indentations extending across the hookflange seam, and the serrated lever pivoted in the slot to press the suspender-web against the transverse indentations and the hookflange seam, which thereby act as a resistance to the suspender-web, as and for the purposes described.

In testimony whereof I have hereunto set my hand and aflixed my seal in presence of two subscribing witnesses.

DAVID L. DURAND. [L. s]

Witnesses:

EDWARD O. DREW, WILLIAM HALSE. 

